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Fennig, Karsten; Bakan, Stephan; Grassl, Hartmut; Klepp, Christian-Phillip; Schulz, Joerg
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS II - 5-days mean
WDCC at DKRZ
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The new version of the Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data set - HOAPS II - contains improved global fields of precipitation and evaporation over the oceans and all basic state variables needed for the derivation of the turbulent fluxes.
Except for the NOAA Pathfinder SST data set, all variables are derived from SSM/I satellite data over the ice free oceans between 1987 and 2002.
The earlier HOAPS version was improved and includes now the utilisation of multi-satellite averages with proper inter-satellite calibration, improved algorithms and a new ice detection procedure, resulting in more homogeneous and reliable spatial and temporal fields as before.
Here, 5-days mean( Pentad )datasets are available but monthly mean and climatological means are also public and available via the CERA database system. The spatial resolution of 0.5 degree, makes them ideally suited for studies of
climate variability over the global oceans. Further information under : http://www.hoaps.zmaw.de
satellite derived dataCompleteness
No data available before 1987-07-09 (launch of first SSM/I). All means covering the time period before launch (1987-01-01 to 1987-07-09) are intentionally included in the data set while all grid boxes are marked as missing values for this time period.
In the period 1988-04 to 1991-12 it was not able to compute the parameter LWPA and TWPA due to a mistake of the satellite instrument. The parameters are included in the data set but they have negativ missing values.
In 1988 and 1989 the satellite instrument did not measured the sea surface temperature (ASST) continuously. This results in absence of datas and the monthly mean values were not computed correctly. Sea surface saturation specific humidity (HSEA) was directly derived from sea surface temperature (ASST) and shows the same missing values in 1988 and 1989.
World Ocean; Latitude: -80.0 to 80.0 Longitude: 180.0 to -180.0
Latitude: -80.0 to 80.0; Longitude: -180.0 to 180.0; Altitude: 0.0 m to 10.0 m
9/7/1987 - 31/12/2002 (calendrical)
'netCDF, records separated'
Dr. Stephan BakanMax-Planck-Institut fuer Meteorologie
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data